Hydrocarbon-gas burner



VIRGIL V. BUMGARNER, OF SAN FRANCISCO, CALIFORNIA.

HYDROCARBON-GAS BURNER.

SPECIFICATION forming part of Letters Patent No. 623,650, dated April 25, 1899.

Application filed October 2, 1897. Serial No. 653,828. (No model.)

To all wrmt 25 muy concern'.-

Beit known that I, VIRGIL W. BUMGARNER, a citizen of the United States, and a resident of the cityand county of San Francisco, State of California, have invented certain new and useful Improvements in Hydrocarbon-Vapor Burners, of which the following is a specification.

My invention relates to apparatus for volatilizing, consuming, and applying hydrocarbon vapor generated from mineral oils and products of these, such as coal-oil or kerosene or gasolene.

My improvements consist especially in a means for interrupting in part and intensifying the fiame produced from hydrocarbon fuel and in certain constructive features -to attain this result,hereinafterpointed out and explained in connection with the drawings, and

set forth in the claim at the end of this specilication.

The objects of my invention are to intensify the heat of the fiame and at the same time diffuse its effect at thevpoint of impingement or application and render the heat uniform over a larger area than is attainable loy means hitherto employed When ordinary coaloil 33o to 45o Baume has been used as fuel.

Referring to the drawings, Figure I is a side elevation of a hydrocarbon-burner conas the smelting and reduction of minerals and in producing chemical reactions and results attained by heat, and consist in certain essential elements or parts, such as a retort for volatilizing the fuel, a jet-orifice through which the vapor is forcibly ejected, a combustion-tube in which the inflammable gas is combined with air, and means of regulating the amount of vapor applied.

Referring to the drawings, l is the main member or body of the burner, made integral with the combustion or combining tube 2 and provided with an inlet 3 for liquid fuel supplied under pressure.

l is the vapor-jet burner, and 5 a conical regulating-valve operated by the screw-stem 6, passing through a gland 7- and turned by the Wheel 8. The combining or combustion tube 2 is parallel to or in axial alinement with the vapor-jet and provided with inward-projecting vanes or ledges 10, that support the auxiliary tubes 11 and 12.

At thefront of the main member 1 I provide a squared extension 13, in which are passages 15 for vapor, preferably made by drilling, the ends of the holes or passages being stopped by screw-plugs 14, as seen in Fig. III. These passages being highly heated from the combustion-tube 2, act as a retort for volatilizing the fuel.

The fuel being drawn from a receiver or tank under pressure enters at 3 through passage 16, then through the passage 17 to those marked 15, and,dividing right and left,passes around on each side to the passage 1S, and from there enters the tubes 19 and 20, and thence in the form of Vapor passes to the burner et. Air enters at 24., as will be hereinafter explained. The vapor-jet at 4 being ignited, the flame spreads and passes into the tube 11, which confines and in some degree compresses the vvolume of flame until it reaches the point at 27 Where the flame is permitted to expand laterally and is interrupted in part by the vanes 22 on the tube 12. So much of the flame as is diverted at the point 2l passes around the outside of the tube 12 at a slower velocity than the core of the dame, which passes directly through the tube l2. This retarded annulus of iiame around the exterior of the tube 12 rejoinsthe core portion and is entrained thereby, as seen at 23 in Figs. I and II, augmenting the intensity of the flame in a remarkable degree, distributing its effect over a larger area, and rendering its effect more uniform and also permitting a higher pressure to be used Without quenching the llame.

The area of the lateral discharge-ways at 27 can be increased or diminished by adjust- IOO ing the tubes Il or 1Q longitudinally, ascrew or screws 2O being` provided to hold them in dillerent positions relatively.

'lhus far the description relates to andthe drawings illustrate my improved burner adjusted for kerosene, gasolcne, or other reduced forms of petroleum-oil; but the device operates well with crude or undistilled oils, requiring, however, in that case a larger amount of air. This I provide by the adjustable cover 25, which is pivoted at 26 and can be swung aside, as indicated in Fig. V, so that the annular passage 27 can be wholly or in part bared for the ingress of air.

In some cases, especially with the most concentrated kinds of fuel, I provide the perforations 28 in the tube l2, which add to the dilusion of the flame at 27; but these are in a degree contingent upon the area ot' the lateral passage between the tubes ll and 12 and also the area occupied by the vanes 22, as will be understood.

As the phenomena attending on the combustion of vapor under the circumstances described are difficult of explanation and the results arrived at mainly by experiment, I do not therefore attempt to present an analysis of the operation of my improved burnerother than that the interruption of the external portion of thejet and a recombination of the whole flame at or beyond the main nozzle of the burner produces a more intense and equal heat than if the flames passed uninterrupted through the combustion-tube.

Having thus described the nature and objects of my invention, I claim- In a hydrocarbon-Vapor burner, a vaporjet and a main combustion-tube set in alinement therewith, an internal combustion-tube made in two sections with a lateral dischargeway between these sections and outward-projecting vanes on one of the sections, whereby the laterally-escaping flame is diffused and retarded, in the manner substantially as described.

In testimony whereof I have hereunto affixed my signaturein the presence of two witnesses.A

VIRGIL lV. BUMGARNER.

Witnesses:

K. LocKwooD-NEVINS, Il. SANDERsoN. 

